CSV SPLITTER

Split a CSV by Column Number or Header Name

Choose a column to create one CSV per value. Auto-detect UTF-8 or Shift_JIS input, or select CP949, Big5, or GB18030 manually. Choose any of the five encodings independently for output. Files up to 50 MB stay in your browser.

How to use Specifications & limits

CSV processing stays in your browser

Your files are not uploaded to a server.

File selection

Drop a CSV file here

Select file

1 CSV file, up to 50 MB

Import settings

Change character encoding and header row settings

Input encoding

Auto-detection covers only UTF-8 and Shift_JIS. For CSV files from mainland China, Korea, or Taiwan, select the matching encoding manually.

Use the first row as a header

How it works

Example: split a CSV by values in the Store column

Choose the Store column to create separate CSV files for the New York and Chicago rows.

Before splitting

3 columns · 3 rows

Before splitting
Order ID	Store	Product
1001	New York	Apples
1002	Chicago	Oranges
1003	New York	Bananas

After splitting

2 columns · 2 rows

After splitting
Created file	Order IDs included
New York.csv	1001, 1003
Chicago.csv	1002

The original CSV is not modified. The split CSV files and a row-count report are saved together in one ZIP file.

Your selected CSV is processed entirely in your browser and is never uploaded to a server.